On Thu, Jan 20, 2005 at 12:15:43PM +0100, moreau francis wrote: > I almost done to run linux in kseg2. But I noticed a > bug > related to the cache that I can't explain. Maybe > you'll > have an idea... > > I configured kseg2 to map kernel space, and to be > "uncached". So when accessing kernel space, virtual > addr > 0xc0000000, I don't use both icache and dcache. > When kernel maps a user page in user space, it uses > data cache. In this scenario, some kernel data are > corrupted. But when I map kernel space and activate > caches to access it, it seems to work. Live is tough, use caches ;-) Mixing different cache modes for results in unspecified behaviour, such as data corruption. Ralf
